釉里红铜红釉
Underglaze Copper-Red
Copper ions develop a red color under high-temperature reducing atmosphere within an extremely narrow firing temperature window (±5-10°C). The most technically challenging process in ancient ceramics.
釉里红铜
Scientific Principle
Copper nanoparticle surface plasmon resonance: Cu⁰ nanoparticles absorb in the long-wavelength visible region, appearing red. Extremely narrow oxygen partial pressure window.